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Title: Support ALSA plugin devices (dmix) for dual mono setups by balloob · Pull Request #193 · Sendspin/sendspin-python-cli · GitHub

Open Graph Title: Support ALSA plugin devices (dmix) for dual mono setups by balloob · Pull Request #193 · Sendspin/sendspin-python-cli

X Title: Support ALSA plugin devices (dmix) for dual mono setups by balloob · Pull Request #193 · Sendspin/sendspin-python-cli

Description: Summary Refactor audio device handling to new audio_devices.py Allow --audio-device to accept raw ALSA device names (e.g., dmixer, olohuone) in addition to numeric indices and name prefixes When a string doesn't match any PortAudio-enumerated device, it's validated and passed directly to sounddevice, letting PortAudio's ALSA backend open named plugin devices like dmix This enables multiple daemon instances to share a single sound card via dmix for multi-room dual mono setups Root cause PortAudio only enumerates hardware ALSA devices, not plugin devices (dmix, plug, etc.). When one daemon opens a hardware device via PortAudio, it acquires exclusive access, preventing the second daemon from even enumerating devices — sounddevice.query_devices() returns an empty list. ALSA dmix is designed for device sharing, but PortAudio bypasses it by opening the raw hardware directly. Changes sendspin/audio.py: Extended AudioDevice with optional alsa_device_name field and device_id property; updated type signatures to accept int | str | None for device parameters sendspin/cli.py: Added _try_alsa_device() fallback in device resolution; updated help text and --list-audio-devices output with ALSA hint on Linux sendspin/tui/app.py and sendspin/daemon/daemon.py: Use device_id instead of index for format detection README.md: Documented ALSA device name usage with dual mono example Usage # Room 1: left channel via dmix sendspin daemon --name "Living Room" --audio-device olohuone # Room 2: right channel via dmix sendspin daemon --name "Kitchen" --audio-device keittio Test plan Verify --list-audio-devices still works and shows ALSA hint on Linux Verify numeric device index selection still works (--audio-device 0) Verify name prefix selection still works (--audio-device "MacBook") Verify raw ALSA device name works on a Linux system with dmix configured Verify two daemons can run simultaneously with different dmix devices Verify invalid ALSA device name gives a clear error message Fixes #58 https://claude.ai/code/session_01G86ZS2aLyMqx3rDwQnsaUS

Open Graph Description: Summary Refactor audio device handling to new audio_devices.py Allow --audio-device to accept raw ALSA device names (e.g., dmixer, olohuone) in addition to numeric indices and name prefixes When a...

X Description: Summary Refactor audio device handling to new audio_devices.py Allow --audio-device to accept raw ALSA device names (e.g., dmixer, olohuone) in addition to numeric indices and name prefixes When a...

Opengraph URL: https://github.com/Sendspin/sendspin-python-cli/pull/193

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8d579c3 Support ALSA plugin devices (dmix) for dual mono setups claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/8d579c3bc100c023e360c588ee358613b0921870
fdb4406 Refactor: pass AudioDevice objects instead of device IDs claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/fdb4406295a104d9163de434b678180d134b78a3
00ec3f7 Make AudioDevice required in format detection functions claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/00ec3f7e764827757671ac0e4f41ef8d1db2a6cd
c0c7f07 List ALSA plugin devices in --list-audio-devices output claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/c0c7f0764ca42d8c8e6846a15e5375caecc34ae9
d51dc29 Extract audio device functions from cli.py into audio_devices.py claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/d51dc299a115bc92572b0cf4c176b57a9351af49
14cfa1f Document audio_devices.py in CLAUDE.md claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/14cfa1f2bb3cc76044e6b18afa5e3674ef8ad53c
447524f Refine audio_devices extraction: keep list_audio_devices in cli.py claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/447524fb5614574721aacb8191ca417c04fee714
a1bc791 Tighten resolve_audio_format: require str, don't log claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/a1bc791683a3ef4405ea8dff4c18fc49946efd1c
b9c7a43 Catch PortAudio OSError around query_devices() call in list_audio_dev… claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/b9c7a4386a4f1b44908feb443baa9c73b575b9f3
eaebcf2 Inline resolve_audio_format into cli.py claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/eaebcf25e2c1b58c96984c544ecc340fe770a640
f1085f5 Update audio_devices.py description to match actual file contents claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/f1085f56a6fa91514a03c78520da3d83dc4a59ac
219cc46 Use English names in ALSA device examples claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/219cc463eb3facbfedba4007e59734a938ae5243
052aec5 Add __post_init__ validation to AudioDevice claude Mar 24, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/052aec5cda41aa7d0a295d649b3a9aa09b5d57d9
2a5353e Fix audio hint balloob Mar 25, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/2a5353ed5c72c631ccbc7f473c3f7213d9c50f05
84169f5 Replace DeviceError with ValueError balloob Mar 25, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/84169f5cdc707cbea821b9cbffef4c244993772d
864eedf Move AudioDevice and query_devices to audio_devices.py balloob Mar 25, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/864eedf85191a789ff04b41ee43821edeb2fe3cf
9bc9d55 Move audio format functions from audio.py to audio_devices.py balloob Mar 25, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/9bc9d55d2adc1f8a6fa155889303c74b8ff34f3f
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3615bd1 Gate ALSA device fallback to Linux only balloob Mar 25, 2026 https://github.com/Sendspin/sendspin-python-cli/pull/193/commits/3615bd170444609e26f2ea6e4426304d458940f8
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